The Staten Island man accused in a string of Brooklyn-shopkeeper murders went nuts in court today, as a judge said he was either “disruptive, confused, or bizarre.”

Salvatore Perrone, a door-to-door dress salesman initially dubbed “John Doe Duffel Bag” for his appearance carrying a satchel on surveillance video that helped nab him, continually interrupted his arraignment in Brooklyn Supreme Court, bursting out that he wanted to see his “real” lawyer and sister.

Court-appointed defense lawyer William Martin struggled to control his client and asked Justice Alan Marrus to order a psyche evaluation.

The judge agreed, adding: “I’m going to check off the box that says ‘disruptive, confused or bizarre behavior.”

Perrone wore an orange jumpsuit to court, with his hands shackled in front of him to a thick leather belt.

Martin entered a “not guilty” to all charges for his loony client.

“Excuse me, your honor. This man is not my attorney. I have not been given any access to the outside world,” he demanded loudly. “Everything has been taken from me – my money, my personal cell phone.”

Perrone did not want Martin to represent him.

“How do I reach my attorney?” he said. “Are we in the United States of America?”